Docs: explain weightedPick distribution - #7366
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Describe the changes below:
Document how
RandomDataGenerator.weightedPickconverts a uniform random value into an array index. Include the selection probabilities for a four-element array to show how strongly earlier entries are favored.Fixes #7300.
Validation:
weightedPickusing 100,000 evenly spaced inputs and compared the resulting frequencies with the calculated probabilities.node --check src/math/random-data-generator/RandomDataGenerator.jspassed.git diff --checkpassed.No runtime code, parameter types or generated files changed.